Favourite Crossbreds!

Hi! I'm a pretty new player, and I'd really like to know some of you guys' favourite crossbreds to breed on Howrse (or in real life, of course).

This can be done like a game. The first person will give a breed, and the next person has to come up with another breed that they think will go well with the last breed given. Then write out the full crossbred name (eg. Welsh-Thoroughbred, or Appaloosa-Thoroughbred), and come up with a new breed you'd like the next cross to start with. Thanks!